package PTA.javabianchengjichu2;

import java.util.Scanner;

public class ex15 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int y = sc.nextInt();
        if (y % 4 == 0 && y % 100 != 0 || y % 400 == 0) {
            System.out.println("yes");
        } else {
            System.out.println("no");

        }
    }
}
